JP2003339442A - Brush for washing columnar material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate washing for a material to be washed by surely clearing away stains regardless of the shape of the material to be washed even if the columnar material to be washed is liable to break, especially even if the material to be washed is liable to break due to the load in the columnar axial direction and in the perpendicular direction. <P>SOLUTION: This brush for washing a columnar material is formed by providing a spiral brush part 2 having an inside diameter substantially equal to the outline of the columnar material to be washed on one end part of a linear body 1. Especially this brush is suitable for washing pH electrode of a pH measuring device. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a columnar object cleaning brush, and more particularly to a columnar object cleaning brush for cleaning columnar objects such as a pH electrode of a pH measuring device which is easily damaged.

[0002]

2. Description of the Related Art Conventionally, a pH measuring device is one in which an indicator electrode is immersed in a solution of an object to be detected, a potential difference between the reference electrode and the reference electrode is measured, and the pH of the solution is measured with reference to the potential of the reference electrode. As these electrodes, generally, silicon atoms and oxygen atoms have a three-dimensional network structure and a thickness of 0.2 mm.
A glass electrode formed of a glass film of a certain degree has been widely used. As described above, since the indicator electrode of the pH measuring device is used by directly immersing it in the solution, depending on the detection solution, solute may adhere to the electrode, and the adhered matter may interfere with the contact with the solution to prevent accurate detection. , Cleaning has become an important issue. As a cleaning device for cleaning such a pH electrode, there have been the following. JP-A-6-109689 discloses a pH for measuring a pH value in a muddy water tank in which muddy water flows in from a muddy water inlet and flows out from a muddy water outlet, and the muddy water is constantly flowed by a circulation pump provided inside.
In the total, in the muddy water tank, a guide pipe having a muddy water inflow opening is provided downward from above the muddy water tank,
A pH meter is disclosed which is capable of measuring pH of mud water without being affected by sedimentation by inserting a pH meter sensor unit having a float into the guide pipe and providing a rotating brush for cleaning the pH meter sensor unit. .

Further, in Japanese Patent Laid-Open No. 4-264247, a brush having a brush portion at the tip of a flexible shaft portion is provided so that the brush portion is located on the upstream side of the inspection end of the electrode. It is placed in the liquid flow by fixing the base end side of the shaft part, and the shaft part of the brush bends or elastically returns due to the stoppage of the liquid flow, so that the brush part wipes the probe end of the electrode. There is disclosed an automatic cleaning mechanism configured as described above, capable of preventing the substance contained in the liquid flow from adhering to the detection end such as the pH electrode and ensuring accurate and stable measurement of pH.

Japanese Utility Model Laid-Open No. 4-85259 discloses a pH detector, a mechanism for moving the pH detector up and down, and a horizontally movable cleaning tank for cleaning the electrodes of the pH detector. In a pH measuring device that repeats measurement and cleaning of electrodes, equipped with a spray nozzle for washing the electrodes with water, equipped with a rotating brush for electrode cleaning in the cleaning tank, and moving the cleaning tank to place the pH electrode in the cleaning tank. However, there is disclosed a pH measuring device that can be washed with a rotating brush.

Japanese Utility Model Publication No. 3-29740 discloses a fixed gear installed on the shaft at the tip of an electrode, a shaft which can freely rotate around the center of the fixed gear, a disk fixed to the shaft, A planetary gear that uses a disc as a bearing and is arranged so as to mesh with the fixed gear, and a position where the locus of the tip of the bristles comes into contact with the tip of the electrode when the shaft rotates at the tip of the shaft of the planetary gear. The brush provided and a brush arranged at a position where the locus of the tip of the bristles come into contact with the side surface of the tip of the electrode, and a motor for driving a shaft that can freely rotate the center of the fixed gear. However, there is disclosed an electrode cleaning device capable of preventing a decrease in measurement accuracy due to contamination of an electrode immersed in a liquid.

[0006]

However, the cleaning devices disclosed therein are for cleaning only the tip portion of the electrode, or for cleaning the side surface portion in addition to the tip portion. In addition, the brush is made in a fixed shape and is dedicated to cleaning the electrode of a fixed shape.It cannot be cleaned according to the shape of the electrode, and the structure of the device is complicated. There have been improvements such as not being able to perform washing appropriately according to the shape of the electrode.

[0007] In particular, depending on the detection solution, the solute is likely to adhere to the electrode, and once attached, cleaning is not easy.
For example, when the substance to be detected is a solution of an organic substance such as a protein solution, the organic substance firmly adheres to the electrode and is not easy to wash. The glass electrode used in the pH measuring device is
The hydrated hydrogen ions enter into the interstices of the mesh to form a gel phase, and the hydrogen ions bonded to the silicic acid skeleton are partially dissociated depending on the hydrogen ion activity in the solution of the object to be detected. On the other hand, by having a negative potential, the potential difference from the reference electrode is measured, and the pH of the solution is measured based on the potential of the reference electrode. After cleaning with an organic solvent,
Distilled water remaining on the surface was wiped with tissue paper or the like. Further, although the adhered dirt was washed with a toothbrush or the like, it was very difficult to completely clean the glass electrode, which is fragile and very expensive.

According to the present invention, the easy structure enables the fragile object to be cleaned to have a shape corresponding to any shape, and the object to be cleaned can be destroyed without being damaged. An object of the present invention is to provide a columnar object cleaning brush that can reliably remove dirt that has adhered to a cleaning object.

[0009]

The inventor of the present invention has a simple structure and can easily adapt to the outer shape of the article to be cleaned, regardless of the columnar shape.
Based on the basic concept of being applicable to delicate items to be cleaned and being easy to handle, the brush part provided at one end of the linear body is suitable for the external shape of a columnar item to be cleaned. The present invention has been completed by discovering that the shape can be transformed into a shape suitable for the shape of the article to be cleaned by transforming the shape.

That is, the present invention is a columnar object cleaning brush having a brush portion provided at one end of a linear member, wherein the brush portion has an inner diameter substantially equal to an outer diameter of the columnar object to be cleaned. A columnar body cleaning brush having a shape, and a columnar body cleaning brush according to claim 1, wherein the columnar body is a pH electrode of a pH measuring device. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION
A brush for cleaning a columnar object in which a brush part is provided at one end of a linear body, wherein the brush part is configured in a helical shape having an inner diameter substantially equal to an outer diameter of the columnar object to be cleaned. There is no particular limitation as long as it is, and the object to be cleaned is preferably used for a pH electrode cleaning brush that is a pH electrode of a columnar pH measuring device.

The brush portion is formed by continuously arranging fiber bundles, has a spiral shape so as to conform to the outer shape of the object to be cleaned, and has a spiral shape, and a columnar object is inserted inside the spiral shape. The fiber bundle is not particularly limited as long as it has a shape such that the fiber bundle comes into contact with the surface of the columnar article to be inserted, that is, has an inner diameter almost equal to the outer diameter of the columnar article to be cleaned. The material, hardness, thickness, length, etc. of the fibers constituting the can be appropriately selected depending on the object to be cleaned within a range in which a cleaning effect can be obtained, and the number of fibers constituting the fiber bundle and the density are also It is appropriately selected within the range where the strength of the washed product and the cleaning effect can be obtained.

According to the brush for cleaning a columnar or thin film body of the present invention, the brush portion provided at one end of the linear body is formed into a shape conforming to the outer shape of the body to be cleaned. Regardless of the shape of the object, it can be applied in any shape, and even if the object to be cleaned is easily broken, it is particularly fragile to the load in the axial direction and the orthogonal direction of the column. Even in this case, it is possible to surely remove the dirt and facilitate the cleaning. In particular, when the tip portion of the pH electrode is desired to be washed, it can be easily washed, handling becomes particularly easy, and working efficiency can be improved.

A preferred embodiment of the brush for cleaning a columnar object of the present invention will be described with reference to the drawings. 1 is a side view of one embodiment of the present invention, and FIG. 2 is a perspective view of one embodiment of the present invention. The brush for cleaning a columnar object of the present invention is shown in FIG.
As shown in FIG. 3, the linear body 1 is provided with the brush portion 2 at one end.

The linear body 1 is made of a bendable material. The linear body 1 can be formed by twisting two or more wires or the like. The end of the linear body 1 where the brush portion 2 is not provided is a portion that is gripped by the hand when cleaning the end-to-be-cleaned object, and its length can correspond to cleaning of various kinds of cleaned objects. , Is appropriately selected within a range that is easy to handle when gripped. The wire forming the linear body 1 may be any as long as it can be bent when two wires are twisted together, and the thickness of the wire depends on the size of the object to be cleaned and the resistance to cleaning. Depending on the strength, the type of dirt attached to the object to be cleaned, etc., it can be appropriately selected within a range where a cleaning effect can be obtained.

The brush portion 2 provided on one side of the linear body 1 is formed by continuously arranging fiber bundles. The fiber bundle may be formed of a material appropriately selected according to the object to be cleaned such as synthetic resin, natural fiber, metal fiber, or a fiber obtained by mixing these. The hardness, thickness, length, etc. of the fibers constituting the fiber bundle can be appropriately selected within the range where a cleaning effect can be obtained according to the object to be cleaned. For example, in the case of a pH electrode composed of a glass film, as the fibers constituting the fiber bundle, those composed of synthetic fibers such as nylon, polyester and acrylic can be applied. Further, the fibers constituting the fiber bundle may be composed of composite fibers. That is, a sea-island structure composed of a sea component composed of polystyrene and an island component composed of polyester, a structure having a multilayer structure of polyester and nylon, and the like can be appropriately selected. In the case of a sea-island structure, island fibers having different thicknesses can be used. Further, the number of fibers constituting the fiber bundle is also appropriately selected within a range in which the strength of the object to be cleaned and the cleaning effect are obtained, and the planting density of the fiber bundle is also the strength of the object to be cleaned and the cleaning effect. It is appropriately selected within the range that can be obtained. The brush portion 2 has a spiral shape as shown in FIG. In the spiral shape, the radius of curvature is substantially equal to the radius of curvature of the outer diameter of the columnar object, that is, the inner diameter of the spiral shape is substantially equal to the outer diameter of the object to be cleaned.

In order to manufacture such a brush for cleaning a columnar object, it is possible to manufacture it by twisting a plurality of wires and implanting a fiber bundle. For example, two wires are twisted together to sandwich the fiber bundle, and as shown in FIG. 2, one having a rod-shaped brush portion is formed. The twisting strength of the wire should be such that the fibers can be retained without falling off.
It can be appropriately selected according to the density of the fiber bundle to be planted, and can also be appropriately selected according to the friction coefficient of the fibers constituting the fiber bundle.

Such a brush portion is formed into a shape that matches the outer shape of the object to be cleaned. In the case of a columnar object to be cleaned, for example, a pH electrode, the brush portion 2 is deformed and molded into a spiral shape into which the pH electrode can be inserted. The spiral shape is
The radius of curvature is formed so as to have the radius of curvature of the outer diameter of the columnar object, that is, the helical inner diameter is formed to be substantially equal to the outer diameter of the object to be cleaned. By grasping and moving up and down the linear body 1 of the brush for cleaning such a columnar object, the dirt adhering to the outer wall of the columnar object is cleaned without applying a force in a direction perpendicular to the vertical direction to the columnar object. be able to.

[0019]

As is apparent from the above description, according to the brush for cleaning a columnar object of the present invention, the end portion provided with the brush portion is adapted for cleaning the columnar object according to the shape of the object to be cleaned. Since it is molded into a shape, regardless of the shape of the object to be cleaned, even if the object to be cleaned is fragile, especially if it is fragile against loads in the axial direction and the orthogonal direction of the column,
It is possible to surely remove dirt, and it is possible to easily wash the object to be washed. In particular, when the tip portion of the pH electrode is desired to be washed, it can be easily washed, handling becomes particularly easy, and working efficiency can be improved.

[Brief description of drawings]

FIG. 1A is a side view of an embodiment of a brush for cleaning a columnar object of the present invention. (B) It is the side view which removed the fiber bundle of one Example of the brush for washing | cleaning the pillars of this invention.

FIG. 2 is a perspective view showing a manufacturing process of an embodiment of the columnar object cleaning brush of the present invention.

[Explanation of symbols]

1 ... Linear body 2 ... Brush part

Claims (2)

[Claims] 1. A brush for cleaning a pillar, wherein a brush is provided at one end of a linear body, wherein the brush has a helical shape having an inner diameter substantially equal to an outer diameter of the pillar to be cleaned. A brush for cleaning columnar objects, which is characterized in that 2. The brush for cleaning a columnar article according to claim 1, wherein the columnar article is a pH electrode of a pH measuring device.